A) Kangaroo
B) Platypus
C) Monkey
D) Both [a] and [c]
Correct Answer: D
Solution :
Blastocyst is a type of blastula. In this, the blastula is a cyst with 2 types of cell: an outer epithelium like layer of trophoblast or nutritive cells and an inner mass of formative cells collectively called embryonal knob, eg, mammals (Metatherian and Eutherian mammals).You need to login to perform this action.
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